/* Case-insensitive string comparison functions in C locale.

   Copyright (C) 1995-1996, 2001, 2003, 2005, 2009-2020 Free Software

   Foundation, Inc.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU Lesser General Public License as published by

   the Free Software Foundation; either version 2.1, or (at your option)

   any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License

   along with this program; if not, see <https://www.gnu.org/licenses/>.  */

#ifndef C_STRCASE_H

#define C_STRCASE_H

#include <stddef.h>

/* The functions defined in this file assume the "C" locale and a character

   set without diacritics (ASCII-US or EBCDIC-US or something like that).

   Even if the "C" locale on a particular system is an extension of the ASCII

   character set (like on BeOS, where it is UTF-8, or on AmigaOS, where it

   is ISO-8859-1), the functions in this file recognize only the ASCII

   characters.  More precisely, one of the string arguments must be an ASCII

   string; the other one can also contain non-ASCII characters (but then

   the comparison result will be nonzero).  */

#ifdef __cplusplus

extern "C" {

#endif

/* Compare strings S1 and S2, ignoring case, returning less than, equal to or

   greater than zero if S1 is lexicographically less than, equal to or greater

   than S2.  */

extern int c_strcasecmp (const char *s1, const char *s2) _GL_ATTRIBUTE_PURE;

/* Compare no more than N characters of strings S1 and S2, ignoring case,

   returning less than, equal to or greater than zero if S1 is

   lexicographically less than, equal to or greater than S2.  */

extern int c_strncasecmp (const char *s1, const char *s2, size_t n)

  _GL_ATTRIBUTE_PURE;

#ifdef __cplusplus

}

#endif

#endif /* C_STRCASE_H */